<!DOCTYPE html><html><head><meta charset="UTF-8"><title>css3+jQuery制作导航菜单(带动画效果)</title><style>body{margin: 0;padding: 0;}.m-menu{margin: 0;padding: 10px; width: 100%; height: 100px;}.m-menu-item{display: inline-block; position: relative; margin: 0 -5px 0 0; width: 200px;height: 100px;background-color: #dddddd;list-style-type: none;}.m-menu-item:hover{background-color: #999999;}.m-menu-item-text{display: inline-block; width: 100%; line-height: 100px;text-align: center;cursor: pointer;}.m-menu-empty{height: 50px;background-color: transparent;}.m-menu-item-detail{opacity: 0; position: absolute; top: 120px;width: 200px;height: 200px;background-color: rgba(102,102,102,0.5);box-shadow: 0 0 10px #3366cc;transform: scale(0, 0);z-index: 999;}.m-menu-item-detail-inner{padding: 5px;}.m-menu-item-detail-show {animation:detail 0.5s linear;animation-fill-mode: forwards;}@keyframes detail{0% {transform: scale(0.5, 0.5);opacity: 0.5;}50% {transform: scale(0.9, 0.9);opacity: 0.9;}100% {transform: scale(1, 1);opacity: 1;}}</style><script src="/jquery/3.2.1/jquery.js"></script></head><body><ul class="m-menu" id="m-menu"><li class="m-menu-item js-menu-item"><span class="m-menu-item-text">菜单1</span><div class="m-menu-empty"></div><div class="m-menu-item-detail js-detail"><div class="m-menu-item-detail-inner">菜单1的详细信息</div></div></li><li class="m-menu-item js-menu-item"><span class="m-menu-item-text">菜单2</span><div class="m-menu-empty"></div><div class="m-menu-item-detail js-detail"><div class="m-menu-item-detail-inner">菜单2的详细信息</div></div> </li></ul><script>$(function () {var myAction = {};var dom = {menu: $('#m-menu'),menuItem: $('.js-menu-item'),detail: $('.js-detail')};$.extend(myAction, {openMenu: function (that) {var detail = that.find('.js-detail');if (!detail.hasClass('m-menu-item-detail-show')) {detail.addClass('m-menu-item-detail-show');}},closeMenu: function () {//$('.js-detail').hide();$('.js-detail').removeClass('m-menu-item-detail-show');},initEvent: function () {dom.menu.on('mouseenter', '.js-menu-item', function () {var that = $(this);myAction.openMenu(that);});dom.menu.on('mouseleave', '.js-menu-item', function () {var that = $(this);myAction.closeMenu(that);});}});var init = function () {myAction.initEvent();}();})</script></body></html>
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